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author | bors[bot] <bors[bot]@users.noreply.github.com> | 2019-01-05 10:57:39 +0000 |
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committer | bors[bot] <bors[bot]@users.noreply.github.com> | 2019-01-05 10:57:39 +0000 |
commit | 9b5b13dfcfe32bccbf3593eee26bf88a5fd60413 (patch) | |
tree | 6e9822bea3fbda059fa02661f6e6137770885520 /crates/ra_analysis/src | |
parent | 481713a0e17e1557288e88a6b1a173b111792998 (diff) | |
parent | ea3504057e73f541af64451a1b5d2c691d5c01bc (diff) |
Merge #430
430: split import assist r=matklad a=matklad
Co-authored-by: Aleksey Kladov <[email protected]>
Diffstat (limited to 'crates/ra_analysis/src')
-rw-r--r-- | crates/ra_analysis/src/goto_defenition.rs | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/crates/ra_analysis/src/goto_defenition.rs b/crates/ra_analysis/src/goto_defenition.rs new file mode 100644 index 000000000..607a25115 --- /dev/null +++ b/crates/ra_analysis/src/goto_defenition.rs | |||
@@ -0,0 +1,73 @@ | |||
1 | use ra_db::FileId; | ||
2 | use ra_syntax::ast; | ||
3 | |||
4 | use crate::db::RootDatabase; | ||
5 | |||
6 | pub fn goto_defenition(db: &RootDatabase, position: FilePosition, | ||
7 | ) -> Cancelable<Option<Vec<NavigationTarget>>> { | ||
8 | let file = db.source_file(position.file_id); | ||
9 | let syntax = file.syntax(); | ||
10 | if let Some(name_ref) = find_node_at_offset::<ast::NameRef>(syntax, position.offset) { | ||
11 | return Ok(Some(reference_defenition(db, position.file_id, name_ref))); | ||
12 | } | ||
13 | if let Some(name) = find_node_at_offset::<ast::Name>(syntax, position.offset) { | ||
14 | return Ok(Some(name_defenition(db, position.file_idname))); | ||
15 | } | ||
16 | Ok(None) | ||
17 | } | ||
18 | |||
19 | fn reference_defenition(db: &RootDatabase, file_id: FileId, name_ref: ast::NameRef) -> Cancelable<Vec<Nav>> { | ||
20 | if let Some(name_ref) = find_node_at_offset::<ast::NameRef>(syntax, position.offset) { | ||
21 | let mut rr = ReferenceResolution::new(name_ref.syntax().range()); | ||
22 | if let Some(fn_descr) = | ||
23 | source_binder::function_from_child_node(self, position.file_id, name_ref.syntax())? | ||
24 | { | ||
25 | let scope = fn_descr.scopes(self); | ||
26 | // First try to resolve the symbol locally | ||
27 | if let Some(entry) = scope.resolve_local_name(name_ref) { | ||
28 | rr.resolves_to.push(NavigationTarget { | ||
29 | file_id: position.file_id, | ||
30 | name: entry.name().to_string().into(), | ||
31 | range: entry.ptr().range(), | ||
32 | kind: NAME, | ||
33 | ptr: None, | ||
34 | }); | ||
35 | return Ok(Some(rr)); | ||
36 | }; | ||
37 | } | ||
38 | // If that fails try the index based approach. | ||
39 | rr.resolves_to.extend( | ||
40 | self.index_resolve(name_ref)? | ||
41 | .into_iter() | ||
42 | .map(NavigationTarget::from_symbol), | ||
43 | ); | ||
44 | return Ok(Some(rr)); | ||
45 | } | ||
46 | if let Some(name) = find_node_at_offset::<ast::Name>(syntax, position.offset) { | ||
47 | let mut rr = ReferenceResolution::new(name.syntax().range()); | ||
48 | if let Some(module) = name.syntax().parent().and_then(ast::Module::cast) { | ||
49 | if module.has_semi() { | ||
50 | if let Some(child_module) = | ||
51 | source_binder::module_from_declaration(self, position.file_id, module)? | ||
52 | { | ||
53 | let file_id = child_module.file_id(); | ||
54 | let name = match child_module.name() { | ||
55 | Some(name) => name.to_string().into(), | ||
56 | None => "".into(), | ||
57 | }; | ||
58 | let symbol = NavigationTarget { | ||
59 | file_id, | ||
60 | name, | ||
61 | range: TextRange::offset_len(0.into(), 0.into()), | ||
62 | kind: MODULE, | ||
63 | ptr: None, | ||
64 | }; | ||
65 | rr.resolves_to.push(symbol); | ||
66 | return Ok(Some(rr)); | ||
67 | } | ||
68 | } | ||
69 | } | ||
70 | } | ||
71 | Ok(None) | ||
72 | |||
73 | } | ||